Re: new power transformer

To: tesla-at-pupman-dot-com
Subject: Re: new power transformer
From: "D.C. Cox" <DR.RESONANCE-at-next-wave-dot-net> (by way of terryf-at-verinet-dot-com)
Date: Tue, 25 Aug 1998 23:07:33 -0600
Approved: terryf-at-verinet-dot-com

to: Dwight

PT's are not current limited, ie, they do not have an inductive shunt
internally.  These require external series ballast, usually a value of
around 40-50 milliHenry to effectively limited the current and prevent core
saturation.  PT's are a great way to go for power levels similar to which
you are running.  We have one portable coil, runs on a PT at 120 VAC with
18 amps max, and produces output sparks in the 4-5 ft. long range without
requiring 220 VAC which as you mentioned is not always available.

DR.RESONANCE-at-next-wave-dot-net


----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: new power transformer
> Date: Tuesday, August 25, 1998 5:27 PM
> 
> 
> Hi All,
> 
>   For the last 6 months or so I have been running my 3KW magnifier system
> with and output varying from 4-6 feet.  The problem is form marathon runs
> my power transformers overheat and start smoking after 30 min.  They are
> two 5 KV 300 ma transformers put in series.
>     I am ready to upgrade these to a potential transformer or a 5 kva
pig.
> My question is are the potential transformers current limited cores? or
do
> these also need ballasting to work.
>     The reason for leaning more for the potential transformer is that I
> like to keep the system portable and not everywhere I take it has 220
> available to me.  Also the pigs tend to be very heavy and hard to put on
a
> truck.
>     Could anyone give me advise either way.
> 
> Thanks,
> 
> Dwight Duncan
>